The role of natural factors in amplifying or mitigating air pollution.

In environmental issues, industry is often the primary scapegoat. However, nature itself can exacerbate pollution: due to various weather conditions, harmful emissions can either accumulate in one area or spread widely. Details in our post.

### Wind and Atmospheric Pressure
Air is constantly moving, spreading pollutants from one place to another and even across borders. For example, acid rains in Sweden are caused by sulfur and nitrogen oxides carried by winds from UK and German industries. Asia faces its own weather phenomenon - yellow dust. Powerful spring winds pick up dust particles from the Gobi Desert located in China and Mongolia and sweep it over the Korean Peninsula and Japan.

Within industrial hubs, even a low wind speed can pose a threat. At speeds of 1–2 m/s, toxic substances from ventilation systems settle on the ground, and at 4–6 m/s, from large power plants. The direction matters too; wind blowing from factories towards city centers will lead to pollution.

The most dangerous situation is a calm associated with a high-pressure area or anticyclone. Pollutants remain near the ground, trapped in one region. Conversely, in low-pressure areas or cyclones, swirling currents rise and precipitation occurs, scattering or washing away pollutants.

### Air Temperature and Humidity
Temperature affects air movement: warmer, lighter currents rise and cooler, denser ones sink, a phenomenon called convection. Which pollutants travel depends on seasonal weather.

### Cold Weather Impact
In cold seasons, exhaust fumes and smoke are more noticeable. One might wonder whether it’s just more visible or if there's more pollution. The answer is both. Firstly, exhausts are a mix of carbon dioxide, nitrogen, warm steam, and harmful impurities. We see condensed water droplets when steam hits cold temperatures. Moreover, during late autumn and winter, vehicles often idle, burning extra fuel and producing more emissions.

Secondly, even if industrial waste remains constant throughout the year, there's more heating during colder months, releasing carbon monoxide and other toxic hydrocarbons.

Temperature inversions can exacerbate the situation. Typically, warm air rises, carrying pollutants that disperse over large areas. But sometimes, a layer of unusually cold air forms at the ground with warmer air above, preventing the cold air from rising. This traps pollutants below, resulting in smog.

### Heat Impact
During hot periods, ground-level ozone accumulates in cities and rural areas. In the stratosphere, this gas protects against ultraviolet rays, but at ground level, it's harmful. It's advisable to stay indoors during extreme heat, tracking hourly forecasts on our service. Luckily, summer often brings seasonal thunderstorms. Scientists note that high humidity helps break down ozone, so rain reduces it, and clouds inhibit its production.

May the air in your city be pure and your mood cloudless!

Air Pollution: Beyond Human Causes

When we think of extreme heat, visions of arid deserts, parched landscapes, and relentless sun immediately come to mind. While many places on Earth experience scorching t

When we think of extreme heat, visions of arid deserts, parched landscapes, and relentless sun immediately come to mind. While many places on Earth experience scorching temperatures, only a few hold the records for being the hottest. These regions are not just hot; they are furnaces where the heat can be unbearable, even deadly. In this article, we will explore some of the hottest places on Earth and delve into the meteorological phenomena that make these locations so extreme

When we think of extreme heat, visions of arid deserts, parched landscapes, and relentless sun immediately come to mind. While many places on Earth experience scorching temperatures, only a few hold the records for being the hottest. These regions are not just hot; they are furnaces where the heat can be unbearable, even deadly. In this article, we will explore some of the hottest places on Earth and delve into the meteorological phenomena that make these locations so extreme.

## Measuring extreme temperatures
Temperature is typically measured using thermometers placed in standardized shelters to protect them from direct sunlight, allowing for more accurate readings of air temperature. Surface temperatures, however, can be much higher and are often recorded via satellite or ground measurements. This makes comparing temperatures challenging, as older records may not be as reliable as modern data due to inconsistencies in measurement methods. Despite these challenges, certain locations have consistently recorded extreme temperatures that place them among the hottest on Earth.

## 6. Ahvaz, Iran
**Highest temperature:** 53.7°C (129°F) in 2017

Ahvaz, a city in southwestern Iran, is known for its extreme temperatures. The city is also home to the stunning White Bridge (Pol-e Sefid), an iconic landmark that spans the Karun River and is illuminated beautifully at night.

<figure>

![The White Bridge in Ahvaz, Iran. Image by Sajjadsoroosh](https://avatars.mds.yandex.net/get-weather/5278294/AFMmzAHXyvxXOjDhtQRQ/orig)

The White Bridge in Ahvaz, Iran. Image by Sajjadsoroosh
<figcaption>
</figcaption>
</figure>

### Factors contributing to Ahvaz’s heat
* Ahvaz is located near the Lut Desert, contributing to the high temperatures.
* Urban heat island effect: The urban environment of Ahvaz can further amplify temperatures due to the heat retention of buildings and pavement.

## 5. Mitribah, Kuwait
**Highest temperature:** 54°C (129.2°F) in 2016

Mitribah, a remote area in Kuwait, recorded one of the highest temperatures on Earth.

<figure>

![The skyline of Al Kuwayt, the capital of Kuwait. Image by SenuScape](https://avatars.mds.yandex.net/get-weather/5278294/mDxaIicSAoHZTThtrXqN/orig)

The skyline of Al Kuwayt, the capital of Kuwait. Image by SenuScape
<figcaption>
</figcaption>
</figure>

### Factors contributing to Mitribah’s heat
* Desert environment: Mitribah is situated in a desert climate with extreme heat and minimal precipitation.
* High-pressure systems: Persistent high-pressure systems in the region contribute to clear skies and prolonged sunshine.
## 4. Dallol, Ethiopia
**Average daily temperatures:** Exceed 40°C (104°F) with highs approaching 48.9°C (120°F)

Dallol, located in the Danakil Depression in Ethiopia, is one of the hottest inhabited places on Earth. Dallol is known for its otherworldly landscape, including colorful hydrothermal deposits and acidic hot springs, making it a popular site for adventurous travelers.
<figure>

![The Dallol volcano. Image by A. Savin](https://avatars.mds.yandex.net/get-weather/5278294/giievMrTStfzxidlAXfg/orig)

The Dallol volcano. Image by A. Savin
<figcaption>
</figcaption>
</figure>

### Factors contributing to Dallol’s heat
* Geothermal activity: The region’s geothermal activity contributes to the high temperatures.
* Desert climate: The arid climate exacerbates the heat.
## 3. Sahara Desert, North Africa
**Highest verified temperature:** 124.3°F (51.3°C) in 2018

The Sahara Desert, the world’s largest hot desert, spans several North African countries and experiences extreme heat, especially in the central regions. In El Azizia, Libya, a temperature of 57.8°C (136°F) was once recorded, though this measurement is disputed. Kebili, a desert town in Tunisia, is also known for recording one of the highest temperatures in Africa: in 1931, a temperature of 55°C (131°F) was reported, although this record is similarly considered less reliable than modern data. A much more verifiable record for the Sahara was set during the 2018 heat wave, measuring 51.3°C (124.3°F).

<figure>

![The Sahara Desert. Image by Greg Gulik](https://avatars.mds.yandex.net/get-weather/5278294/LGXgLpjmFmmJTWAXucrA/orig)

The Sahara Desert. Image by Greg Gulik
<figcaption>
</figcaption>
</figure>

### Meteorological dynamics in the Sahara
* High insolation: The Sahara receives some of the highest amounts of solar radiation on Earth.
* Arid climate: The dry conditions mean there is very little evaporation to cool the air, leading to high temperatures.
* Sand and rock composition: The sandy and rocky terrain absorbs and radiates heat efficiently.
## 2. Lut Desert, Iran
**Highest ground temperature:** 70.7°C (159.3°F) in 2005

The Lut Desert, or Dasht-e Lut, in southeastern Iran, is one of the hottest places on Earth in terms of surface temperature. According to NASA’s satellite data, this desert holds the record for the highest ground temperature ever recorded: an astonishing 159.3°F (70.7°C) in 2005. The Lut Desert is a UNESCO World Heritage site, renowned for its stunning geological formations, including the massive Yardangs — wind-carved ridges and grooves that stretch for miles.

<figure>

![Dasht-e Lut, an aerial view. Image by Ninaras](https://avatars.mds.yandex.net/get-weather/5278294/JFqEeBkqaUwOVKdGEMek/orig)

Dasht-e Lut, an aerial view. Image by Ninaras
<figcaption>
</figcaption>
</figure>

### Meteorological factors in the Lut Desert
* Surface composition: The desert features dark lava surfaces, which absorb a significant amount of solar radiation, leading to extremely high surface temperatures.
* Dry air: The arid climate means there is very little moisture in the air to absorb heat, allowing surface temperatures to soar.
* Seasonal variations: During the summer months, the lack of vegetation and moisture leads to minimal cooling at night, keeping the temperatures high.

## 1. Death Valley, California, USA
**Highest air temperature:** 53.7°C (129°F) in 2017

Located in the Mojave Desert in eastern California, Death Valley is a place synonymous with extreme heat. Furnace Creek in Death Valley recorded the highest air temperature ever observed on our planet. While many records are hard to verify, Death Valley remains the undisputed hottest place on Earth.

<figure>

![Death Valley National Park. Image by Abby Kihano](https://avatars.mds.yandex.net/get-weather/10879918/JBEEdLYfEfFiwexPkAMi/orig)

Death Valley National Park. Image by Abby Kihano
<figcaption>
</figcaption>
</figure>

### Why is Death Valley so hot?
* Geography and topography: Death Valley is a below-sea-level basin surrounded by high, steep mountain ranges. This topography contributes to a phenomenon known as a “rain shadow,” where mountains block the passage of rain-producing weather systems, leading to arid conditions.
* Albedo effect: The valley’s floor consists of light-colored salt flats, which reflect sunlight and intensify the heat.
* High-pressure systems: Persistent high-pressure systems often dominate the region, leading to clear skies and prolonged sunshine.

The hottest places on Earth are fascinating examples of how geography, atmospheric conditions, and human factors interact to create extreme environments. Understanding these factors not only satisfies our curiosity but also highlights the challenges faced by people living in these regions. As climate change continues to impact global weather patterns, we could see even more record-setting temperatures in these places as well as other parts of the world. Studying these hotspots provides valuable, actionable insights into the future of our planet’s climate.


The hottest places on Earth: Where the sun’s fury is unleashed

Discover the mesmerizing spectacle of fire tornadoes, a natural phenomenon that showcases nature's fiery power

Nature is full of astonishing phenomena! There are the beautiful ones like rainbows, silvery clouds, and halos, and then there are the terrifying ones. We recently wrote about volcanic eruptions - it's horrifying to imagine cities being engulfed by molten lava. But there are other equally shocking spectacles - fire tornadoes.

Today, we discuss the reasons behind these phenomena and end by showcasing some of the most devastating examples.
<figure>

![Source: www.nationalgeographic.com/](https://avatars.mds.yandex.net/get-weather/10145165/GoUgjdztbNiHYpUXplhR/orig)
<figcaption>
Source: www.nationalgeographic.com

</figcaption>
</figure>
### How They Form
A fire tornado originates when several large fire sources combine. The heated air above them becomes less dense and rapidly rises. Cooler air currents from the surrounding area replace it at ground level, further fanning the flames. The more intense the fire and the rising air above it, the faster these currents become.

Due to the centripetal motion and high wind speeds, various objects can be drawn into the fire's epicenter – from dust to trees ripped out by the wind. Above this center, burning particles spiral upwards, dragging flames with them and forming fiery columns. Some can reach heights of over 1 km.

The temperature of these whirlwinds ranges around 1000-1500 °C. Another risk they pose is their ability to "shoot" burning debris, leading to new fires nearby.

Because of the rapid ascent of air, together with fire tornadoes, a unique type of cloud usually forms - the pyrocumulus or pyrocumulonimbus clouds. We will discuss these in one of our upcoming articles.

### Where They Occur
Tornadoes can emerge anywhere extensive fires take place; they have no specific geography. For instance, in recent years, they've been frequently spotted in areas affected by intense forest fires - in the USA, Australia, Russia, Japan, and European countries.
<figure>

![Source: belta.by/](https://avatars.mds.yandex.net/get-weather/5257675/ZEDLttSqVduRBLDQdJZM/orig)

<figcaption>
Source: belta.by
</figcaption>
</figure>
### Examples of Fire Tornadoes
— 1923, Japan: In just 15 minutes, a fire tornado resulting from an earthquake and the fires it caused throughout Tokyo took the lives of about 40,000 people.

— 1941-1945, World War II: Due to bombings during the war, heated tornadoes raged often. One of the largest was a tornado in Hamburg in 1943. Sparked by a massive citywide fire from bombings and reaching heights of nearly 500 meters, it led to the death of around 40,000 people. In 1945, in Dresden, a fire tornado claimed more than 20,000 lives. In that same year in Kobe, Japan, a fiery tornado took 7,000 lives. Later, a similar tornado occurred in Hiroshima after the nuclear strike.

— 2011, Hungary: A tornado emerged during a fire at a plastics manufacturing plant and completely destroyed the facility.

— 2012, Australia: Fire tornadoes in this hot country are almost an annual occurrence. In 2012, a tornado formed precisely where director Chris Tendji was filming. He managed to capture the terrifying phenomenon on film.

— 2023, Chile: This disaster led to the death of over 20 people and the destruction of 800 homes.

We wish you only wonderful natural phenomena! Remember, to choose the best day for stargazing or to plan an extended trip out of town to admire spring-summer clouds, our precipitation map can assist you.

Fire Tornadoes: Nature's Fiery Spectacle

During the course of a month, the Moon goes through several phases. The major Moon phases are the new moon, the first quarter, the full moon, and the third quarter. As a 

During the course of a month, the Moon goes through several phases. The major Moon phases are the new moon, the first quarter, the full moon, and the third quarter. As a matter of fact, the Moon displays eight main phases. We'll dive deeper into these phases to find out why this Earth's most constant companion changes its appearance night after night.

During the course of a month, the Moon goes through several phases. The major Moon phases are the new moon, the first quarter, the full moon, and the third quarter. As a matter of fact, the Moon displays eight main phases. We'll dive deeper into these phases to find out why this Earth's most constant companion changes its appearance night after night.


## Understanding the phases of the Moon

Lunar phases are the shapes of the visible part of the satellite from Earth's perspective. Fun fact: the illuminated edge of the Moon's visible surface is called the limb, while the line that separates the illuminated and the shaded sections is the Moon's terminator (a word derived from the Latin "terminare", which means "to set bounds to").

As the Moon goes around the Earth, the Sun illuminates different parts of the Moon, which changes its appearance and creates lunar phases.

Examples of terminology relating to lunar phases that is commonly used by the scientific community:
* The Moon cycle, which is one full orbit by our Moon around the Earth. It takes 29.5 days.
* A Synodic month, or a Lunation, being the time between two successive new moons.
* The age of the Moon, which is the number of days since the last new moon.

![](https://avatars.mds.yandex.net/get-weather/10931474/aFgVIzcPdWaciFZlGEiB/orig)

## A guide to the phases of the Moon

There are 4 major phases of the Moon — the full moon, the new moon, the first and the last quarters. The 4 minor phases are waxing crescent, waxing gibbous, waning gibbous, and waning crescent. The major phases of the Moon occur about 7.4 days apart.

**New moon**

The Moon is between the Sun and the Earth. Thus, the side of the Moon facing the Earth is in shadow.

**Waxing crescent**

This phase follows the new moon, as the Moon starts to "grow". We only see the edge of the part that is gradually illuminated by the Sun.

**First quarter**

The Moon has completed 1/4 of its orbit around the Earth. Half of the Moon's surface is illuminated by the Sun.

**Waxing gibbous**

More than half of the Moon’s surface visible from Earth is illuminated.

**Full moon**

During this phase, the Earth is positioned between the Moon and the Sun, which illuminates the entire near-side of the satellite. We can enjoy the round appearance of the full moon all night long.

**Waning gibbous**

After the full moon, the illuminated part of the Moon begins to wane. During this phase, the surface of the Moon that we see from the Earth is still mostly illuminated.

**Last quarter**

The Moon looks like it is half illuminated.

**Waning crescent**

The final phase of the Moon before transitioning back into the new moon. Only a small, crescent-shaped sliver of the Moon is visible, which is diminishing in size.

![](https://avatars.mds.yandex.net/get-weather/10931474/oZYbnQGKEjDVrFluxqWQ/orig)


Understanding the phases of the Moon

In spite of the long history of weather forecasting, the accuracy of most modern methods leaves a lot to be desired. That’s why we’d looked at the available solutions, no

In spite of the long history of weather forecasting, the accuracy of most modern methods leaves a lot to be desired. That’s why we’d looked at the available solutions, noted their weak spots, and built Meteum — the most powerful forecasting platform to date.

Depending on who you ask, weather forecasting has been around for hundreds or even thousands of years. Having an idea of whether it rains on a particular day is endlessly convenient, yes — but it’s also hard to overstate the importance of weather tech for many modern industries. Although it may seem that weather forecasting is solely a consumer-focused product, many businesses and government institutions depend on it, and an inaccurate forecast can easily cost millions.

In spite of the long history of weather forecasting, the accuracy of most modern methods leaves a lot to be desired. That’s why we’d looked at the available solutions, noted their weak spots, and built Meteum — the most powerful forecasting platform to date.

## Why Meteum?
 

We don’t collect someone else’s weather data only to relay it in a pretty package. Instead, we aggregate it from several providers, who themselves collect their data from a vast array of sources, such as weather balloons, aircrafts, satellites, on-ground stations, and radars. Then we let our models analyze this data to derive the ultimate forecasts, which we transmit to more than 50 million of our end-users.

Here’s how it works: Meteum parses a number of different forecasts — one conducted by our own team of meteorologists and the rest incoming from third-party providers. All of them are generated using various meteorological models, both proprietary and open-source. But no model is completely fail-safe, and the astounding volume of data we collect makes it practically impossible for humans to handle. The good news is that our own AI algorithms can find patterns by juxtaposing past forecasts with actual weather history and output the optimal combination where the forecasts all align with each other.

<figure>

![Источник: meteum//](https://avatars.mds.yandex.net/get-weather/10931474/IvsnTFWQtOsSzjOciqow/orig)

<figcaption>

Meteum. Weather forecasting technology 

</figcaption>

</figure>

In addition to AI-generated forecasts for the week, Meteum also provides precise information about precipitation expected within two hours, split into ten-minute intervals. This info is presented to users in map form; the app sends rain alerts when appropriate. The assessments are made with the help of machine learning, satellite imagery, and radar data. Meteum considers various factors, such as the height of the Sun above the horizon, humidity, and altitude.

 

## Introducing: User Reports
 

It’s no easy feat for a weather app to correctly reflect the conditions you see from the window: weather stations are typically sparsely located and follow a strict schedule when taking measurements. Conditions can vary drastically even within the same city: the Earth’s atmosphere is prone to unexpected shifts, which are insanely difficult to predict. It doesn’t help that seeing this stark contrast between a “perfectly clear” report on one’s phone screen and the raging downpour outside raises questions about the forecast’s reliability. But there is a way to display current weather: meteorology buffs refer to this as nowcasting. Meteum uses a mix of mathematical models and recent data from weather stations — but this alone doesn’t quite hit the accuracy mark we’re striving for.

That’s where we innovate: Meteum is the world’s first weather system to base its forecasts not only on measurements made with professional equipment but also on user reports. In our weather app, users can provide instant feedback: for instance, to confirm whether it’s still raining at their location. Every day, Meteum receives up to 3 million user reports from around the globe, and we use this feedback to generate a precipitation map that shows the rain zones with near-perfect accuracy. The reports are also used in training our algorithms to make future now- and forecasts even better.

We’ve come a long way with Meteum and now have a robust system capable of delivering remarkable forecasts — some of the most accurate you’ll find on the market.

But the sky’s the limit, and Meteum continues to improve, adding new data sources and perpetually collecting user reports to train our algorithms. With Meteum, you can weatherproof your decisions with state-of-the-art forecasting solutions tailored to your industry’s or your business’s needs. 



Meteum: weather forecasting technology with proprietary AI-based data processing core


When the ground starts to rumble, it’s too late to start preparing. Earthquakes can strike without warning, leaving destruction in their wake. However, with proper planni

When the ground starts to rumble, it’s too late to start preparing. Earthquakes can strike without warning, leaving destruction in their wake. However, with proper planning and preparation, we can significantly reduce the damage caused by these seismic events. Let’s explore some scientifically backed strategies to minimize earthquake damage, drawing from expert sources and government agencies.

When the ground starts to rumble, it’s too late to start preparing. Earthquakes can strike without warning, leaving destruction in their wake. However, with proper planning and preparation, we can significantly reduce the damage caused by these seismic events. Let’s explore some scientifically backed strategies to minimize earthquake damage, drawing from expert sources and government agencies.

## Building a strong foundation
The old adage “an ounce of prevention is worth a pound of cure” couldn’t be more apt when it comes to earthquake preparedness. The U.S. Federal Emergency Management Agency (FEMA) [emphasizes](https://www.fema.gov/emergency-managers/risk-management/earthquake/seismic-building-codes) the importance of structural integrity in minimizing earthquake damage. For homeowners and businesses, this means:
1. Evaluating your building’s structure, especially if it’s older than current seismic design provisions in local building codes.
2. Considering retrofits to meet or exceed current building codes.
3. Paying special attention to unreinforced masonry, which is particularly vulnerable during earthquakes.

<figure>

![An example of earthquake retrofitting: a parking structure in Berkeley, California. Image by Alex Mead](https://avatars.mds.yandex.net/get-weather/10145165/UFmnZWLizSbuaiEcORnB/orig) 

<figcaption>
An example of earthquake retrofitting: a parking structure in Berkeley, California. Image by Alex Mead

</figcaption>
</figure>



## Securing the inside
While a strong building is crucial, what’s inside matters too. Non-structural elements can pose significant risks during an earthquake. Earthquake experts [recommend](https://www.earthquakeauthority.com/blog/2020/how-to-protect-your-home-before-an-earthquake) several steps to secure your interior spaces:
* Anchor heavy furniture, appliances, and shelving to wall studs.
* Secure ceiling lights and false ceilings to joists.
* Install flexible gas and water connections on appliances.
* Apply safety film to windows and glass doors to prevent shattering.
* Brace heavy machinery, containers, and tanks that could shift or rupture.
These measures not only protect your belongings but also reduce the risk of injury from falling objects.
## Preparing for the aftermath
Earthquake damage isn’t limited to the shaking itself. Secondary effects, like fires, can be just as devastating. The California Earthquake Authority [emphasizes](https://www.earthquakeauthority.com/blog/2020/what-should-you-do-after-an-earthquake) the importance of post-earthquake preparedness:
* Regularly check fire safety equipment, including extinguishers and water tanks.
* Assemble disaster preparedness kits with essentials like dust masks, portable chargers, and battery-powered radios.
* Train staff or family members on emergency procedures, including how to shut off gas, electricity, and water.
Did you know that after the 1906 San Francisco earthquake, it was the subsequent fires that [caused](https://www.1906eqconf.org/plenarySessions.htm) about 90% of the total damage? This underscores the critical importance of fire prevention and preparedness in earthquake-prone areas.

<figure>

![The aftermath of the 1906 San Francisco earthquake. Image by the National Archives and Records Administration](https://avatars.mds.yandex.net/get-weather/10145165/OlsPCfKyRotKQppzPQnu/orig)

<figcaption>
The aftermath of the 1906 San Francisco earthquake. Image by the National Archives and Records Administration

</figcaption>
</figure>

## Community-wide efforts
Individual preparedness is crucial, but community-wide efforts can have an even broader impact. The Seismological Society of America [recommends](https://www.seismosoc.org/us-government-relations/actions-managing-earthquake-risk/) several actions for managing earthquake risk on a larger scale:
1. Developing a culture of preparedness through education and awareness programs.
2. Investing in retrofitting or replacing essential facilities like hospitals, schools, and emergency response centers.
3. Collaborating on region-wide, multi-organizational plans for earthquake response and recovery.
Japan’s nationwide earthquake early warning system, [implemented](https://www.jma.go.jp/jma/en/Activities/eew.html#:~:text=The%20Japan%20Meteorological%20Agency%20(JMA),such%20as%20TV%20and%20radio) in 2007, provides a few seconds to a minute of warning before strong shaking begins, allowing people to take immediate protective actions.
## The role of technology
Advancements in technology play an increasingly important role in earthquake preparedness. While we can’t predict earthquakes with precision, early warning systems can provide crucial seconds of advance notice. Many cities and states now offer free earthquake alert apps that can give residents a brief heads-up before the shaking starts.

For instance, the [ShakeAlert system](https://www.usgs.gov/programs/earthquake-hazards/science/earthquake-early-warning-overview) on the U.S. West Coast can [detect](https://www.usgs.gov/news/entire-us-west-coast-now-has-access-shakealert-earthquake-early-warning) earthquakes as they begin, potentially providing valuable seconds of warning to areas farther from the epicenter. This time can be crucial for automated systems to slow trains, open firehouse doors, or initiate other protective measures.
## Innovative building technologies
Engineers and architects are continually developing new technologies to make buildings more earthquake-resistant. Some fascinating innovations include:
1. [Base isolation](https://www.taylordevices.com/base-isolation/#:~:text=A%20base%20isolation%20system%20is,an%20earthquake%20is%20reduced%20significantly.): This technique involves placing flexible pads between a building and its foundation, allowing the structure to move somewhat independently of the ground during an earthquake.
2. [Tuned mass dampers](https://engineering.purdue.edu/~ce573/Documents/Intro%20to%20Structural%20Motion%20Control_Chapter4.pdf#:~:text=A%20tuned%20mass%20damper%20(TMD),phase%20with%20the%20structural%20motion): Large weights placed at the top of tall buildings that move in the opposite direction of the building’s sway, helping to counteract the earthquake’s motion.
3. [Shape memory alloys](https://phys.org/news/2012-02-shape-memory-alloys-earthquake-resistant.html): These materials can “remember” their original shape after being deformed, potentially allowing buildings to return to their original position after an earthquake.
4. [Self-centering systems](https://onlinelibrary.wiley.com/doi/10.1155/2020/8859881): These designs allow buildings to rock during an earthquake and then return to their original position, minimizing structural damage.

<figure>

![Shanghai Tower tuned mass dumper. Image by: MasaneMiyaPA](https://avatars.mds.yandex.net/get-weather/10145165/CqofyeijfVJrZUTDdmnJ/orig)  

<figcaption>
Shanghai Tower tuned mass dumper. Image by: MasaneMiyaPA

</figcaption>
</figure>

## Seismic deconvolution and masking
[Seismic deconvolution](https://link.springer.com/chapter/10.1007/978-94-009-8105-8_4#:~:text=Deconvolution%20is%20a%20general%20term,the%20seismic%20sources%20and%20receivers) removes effects that mask primary reflected events on a seismogram, such as absorption, reverberation, and ghosting. This technique helps obtain clearer seismic data, crucial for understanding geological structures and making informed decisions about building designs and retrofits.

Additionally, explainable artificial intelligence (AI) is also [being used](https://arxiv.org/abs/2307.06682) to design masks for self-supervised seismic denoising. This approach helps suppress noise in seismic data without requiring prior knowledge of the noise itself, making it a fully automated denoising procedure. This technology can significantly improve the accuracy of seismic data interpretation, leading to better earthquake preparedness and response strategies.
## “Floating house”
One of the most intriguing innovations in earthquake-resistant housing comes from Japan. Air Danshin Systems Inc., a Japanese company, has developed a groundbreaking technology that allows houses to temporarily “float” above the ground during earthquakes. Here’s how Air Danshin’s [system](https://airdanshin.co.jp/house/) works:
* The house is built with an additional foundation, a sensor, and an air compressor.
* When the sensor detects the initial tremors of an earthquake, it sends a signal to the external air compressor.
* Within 0.5 to 1 second, the compressor activates and pumps compressed air between the earthquake-proof foundation and the base of the house.
* This action lifts the entire structure approximately 3 cm (about 1.2 inches) off the ground.
* The house remains elevated during the earthquake, effectively isolating it from ground movements.
* Once the tremors subside, the air is gradually released, and the house settles back onto its foundation.
Air Danshin [claims](https://airdanshin.co.jp/house/) that a house not in contact with the ground during an earthquake will not shake, thus preventing damage. However, this technology has limitations. The 3 cm lift height may not be sufficient for earthquakes with significant vertical movement. Additionally, the system comes with a substantial cost.

Despite these limitations, Air Danshin’s floating house technology represents an innovative approach to earthquake-resistant housing. While it may not be a complete solution to earthquake damage, it could be a valuable piece of a larger strategy for improving seismic safety.
## Economic impact and insurance
The economic toll of earthquakes can be staggering. The 1994 Northridge earthquake in California, the [second-most](https://www.californiaresidentialmitigationprogram.com/resources/blog/which-state-has-the-most-earthquakes-in-the-us#:~:text=Not%20only%20is%20Alaska%20the,fact%20of%20life%20in%20Alaska) seismically-active U.S. states, [caused](https://www.conservation.ca.gov/cgs/earthquakes/northridge) an estimated $20 billion in damage. Earthquake insurance can play a crucial role in recovery, but standard homeowner’s insurance policies typically don’t cover earthquake damage.

<figure>

![The aftermath of the Northridge Earthquake of January 17, 1994. Image by Gary B. Edstrom](https://avatars.mds.yandex.net/get-weather/10145165/wXmpugRBGGinFKpBiBVm/orig)   

<figcaption>
The aftermath of the Northridge Earthquake of January 17, 1994. Image by Gary B. Edstrom

</figcaption>
</figure>

In California, the California Earthquake Authority (CEA) provides most residential earthquake insurance policies. [As of 2022](https://www.fema.gov/emergency-managers/risk-management/earthquake/insurance#:~:text=Despite%20experiencing%2090%25%20of%20the,California's%20residents%20have%20earthquake%20insurance.), only about 10% of California homeowners had earthquake insurance, highlighting a significant gap in financial preparedness.

While we can’t prevent earthquakes, we can certainly mitigate their impact. By focusing on structural integrity, securing non-structural elements, preparing for aftermath scenarios, fostering community preparedness, and leveraging technology, we can significantly reduce the damage and disruption caused by seismic events.

Remember, earthquake preparedness is an ongoing process, not a one-time effort. Regular assessments, updates to your preparedness plans, and staying informed about the latest safety recommendations are all part of a comprehensive approach to minimizing earthquake damage.

As we continue to improve our understanding of seismic risks and develop new mitigation techniques, we move closer to a future where earthquakes, while still formidable natural events, no longer pose the catastrophic threat they once did.

Accurate weather forecasts, weather radar and alerts are available in the app Weather by Meteum for iOS and Android. 

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